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A comment on How to bring down mission-critical GPS networks with $2,500. Parent comment

Re: How to bring down mission-critical GPS networks with $2,500 by gvb on Friday December 14, 2012 @10:12PM (#4924478)
I don't know much about the cryptology they use, but I do know that the keys are time-limited and I'm pretty confident the encryption is strong.

* If you steal a key, it will stop working after a brief time (probably hours to days).

* Knowing the decryption key does not (necessarily) mean you can perform the encryption.

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